[riot-devel] [riot-users] Segmentation fault on example

Ludwig Ortmann ludwig.ortmann at fu-berlin.de
Mon Feb 24 09:21:06 CET 2014


Thanks a lot! The PR has been merged.

Cheers, Ludwig

On Mon, Feb 24, 2014 at 12:13:09AM +0100, Janos Kutscherauer wrote:
> Hi Ludwig,
> 
> i have by now also updated my ubuntu to the Saucy Salamander, where this
> problem doesn't occur.
> 
> To reproduce the problem and check the solution, i set up a Virtualbox VM
> with Ubuntu 12.04 Precise, set up the toolchain, checked out master of RIOT,
> built and ran, and saw the segmentation fault.
> After checking out the issue_741, i built and ran the hello-world example,
> and it worked fine.
> 
> Thanks for your support!
> 
> Cheers
> Janos
> 
> 
> 
> On 23.02.2014 11:24, Ludwig Ortmann wrote:
> >Hi Janos,
> >
> >as you might have noticed, I opened a PR that addresses the problem:
> >https://github.com/RIOT-OS/RIOT/pull/762
> >
> >Please check if it works for you:
> >$ git remote add ludwig https://github.com/LudwigOrtmann/RIOT
> >$ git fetch ludwig
> >$ git checkout issue_741
> >
> >Build your application, run it, post a comment (preferably in github)
> >whether it fixes the problem.
> >
> >Once the PR has been merged, go back to master:
> >$ git checkout master
> >
> >Cheers, Ludwig
> >
> >On 02/17/2014 09:11 PM, Janos Kutscherauer wrote:
> >>Hi Ludwig,
> >>
> >>concerning this issue from the users list, i though with these new clues
> >>it's more a developer thing?
> >>
> >>I tracked down the commit, after which things don't work for me, on both
> >>my ubuntu machines (although almost identical setup, except hardware).
> >>
> >>when i do
> >>     $ git log
> >>i get, among others:
> >>
> >>     commit 4939473afbcfe981b6411595a3b73e792ae28775
> >>     Author: Ludwig Ortmann <ludwig.ortmann at fu-berlin.de>
> >>     Date:   Fri Jan 24 17:03:01 2014 +0100
> >>
> >>         guard malloc/free family
> >>
> >>     commit 5566734575084cc58e45d7320ffbab15e0efddba
> >>     Merge: 5c013e1 7148f1d
> >>     Author: Ludwig Ortmann <ludwig.ortmann at fu-berlin.de>
> >>     Date:   Thu Jan 23 08:35:01 2014 -0800
> >>
> >>         Merge pull request #555 from LudwigOrtmann/tap_error
> >>
> >>         improve error messages when tap ioctls fail
> >>
> >>when i do
> >>     $ git checkout 4939473afbcfe981b6411595a3b73e792ae28775
> >>     $ cd examples/hello-world
> >>     $ make -B clean all
> >>     $ make term
> >>/home/janos/src/riot-os/RIOT/examples/hello-world/bin/native//hello-world.elf
> >>
> >>
> >>     make: *** [term] Segmentation fault (core dumped)
> >>
> >>but with the previous commit
> >>     $ git checkout 5566734575084cc58e45d7320ffbab15e0efddba
> >>     $ cd examples/hello-world/
> >>     $ make -B clean all
> >>     $ make
> >>term/home/janos/src/riot-os/RIOT/examples/hello-world/bin/native//hello-world.elf
> >>
> >>
> >>     RIOT native interrupts/signals initialized.
> >>     LED_GREEN_OFF
> >>     LED_RED_ON
> >>     RIOT native board initialized.
> >>     RIOT native hardware initialization complete.
> >>
> >>     kernel_init(): This is RIOT! (Version: 2014.01-24-g5566-HEAD)
> >>     Scheduler...[OK]
> >>     kernel_init(): jumping into first task...
> >>     Hello World!
> >>
> >>So commit "4939473afbcfe981b6411595a3b73e792ae28775" seems to be
> >>interesting to investigate on, i just don't know yet how to run a diff.
> >>All pretty new to me...
> >>
> >>Oh, and get better soon!
> >>
> >>Cheers
> >>Janos
> >>
> >>
> >>
> >>
> >>On 02/17/2014 08:00 PM, Janos Kutscherauer wrote:
> >>>One more info:
> >>>my native GCC version is
> >>>$gcc --version
> >>>gcc (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3
> >>>
> >>>Cheers
> >>>Janos
> >>>
> >>>
> >>>
> >>>On 02/17/2014 07:08 PM, Janos Kutscherauer wrote:
> >>>>Hi Ludwig,
> >>>>
> >>>>i am having the same problem as reported below by Victor.
> >>>>
> >>>>I did:
> >>>>$ git clone https://github.com/RIOT-OS/RIOT.git
> >>>>$ cd RIOT/examples/hello-world
> >>>>$ make -B clean all
> >>>>$ make term
> >>>>/home/***/RIOT/examples/hello-world/bin/native/hello-world.elf
> >>>>make: *** [term] Segmentation fault (core dumped)
> >>>>
> >>>>A couple of weeks ago (before the announcement of release 2014.01), i
> >>>>already had a go on RIOT, and i am pretty sure - yet without proof! -
> >>>>that i was able to run the hello world example on the native build.
> >>>>Now i did a git clone again.
> >>>>
> >>>>My system is:
> >>>>- Ubuntu 12.04.4 LTS, x86/32bit
> >>>>- As cross compiler i use the binaries from
> >>>>https://launchpad.net/gcc-arm-embedded, version
> >>>>gcc-arm-none-eabi-4_8-2013q4
> >>>>
> >>>>For the versions i'm not so sure, so i try to give some hints:
> >>>>
> >>>>GCC-Version:
> >>>>$ cd
> >>>> ./gcc-arm-none-eabi-4_8-2013q4/bin/arm-none-eabi-gcc --version
> >>>>arm-none-eabi-gcc (GNU Tools for ARM Embedded Processors) 4.8.3
> >>>>20131129 (release) [ARM/embedded-4_8-branch revision 205641]
> >>>>Copyright (C) 2013 Free Software Foundation, Inc.
> >>>>This is free software; see the source for copying conditions. There
> >>>>is NO
> >>>>warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR
> >>>>PURPOSE.
> >>>>
> >>>>For the libc, i really don't know(, also not much about it!). When i
> >>>>run as proposed in
> >>>>http://stackoverflow.com/questions/9705660/check-glibc-version-for-a-particular-gcc-compiler
> >>>>
> >>>>to find out the version,
> >>>>$ gcc glibc-version.c -o glibc-version
> >>>>$ ./glibc-version
> >>>>GNU libc version: 2.15
> >>>>
> >>>>But, compiling it with the cross-compiler (above), doesn't work
> >>>>$ ~/gcc-arm-none-eabi-4_8-2013q4/arm-none-eabi/bin/gcc
> >>>>glibc-version.c -o glibc-version
> >>>>gcc: error trying to exec 'cc1': execvp: No such file or directory
> >>>>
> >>>>and also
> >>>>$ ~/gcc-arm-none-eabi-4_8-2013q4/bin/arm-none-eabi-gcc
> >>>>glibc-version.c -o glibc-version
> >>>>glibc-version.c:3:30: fatal error: gnu/libc-version.h: No such file
> >>>>or directory
> >>>> #include <gnu/libc-version.h>
> >>>>                              ^
> >>>>compilation terminated.
> >>>>
> >>>>Looks like either
> >>>>- i don't have libc ready for cross-compiling...?
> >>>>- Don't know how to use my cross-compiler...
> >>>>
> >>>>
> >>>>Do you have any suggestions?
> >>>>
> >>>>Thanks,
> >>>>Janos
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>
> >>>>On 02/13/2014 03:53 PM, Ludwig Ortmann wrote:
> >>>>>Hi Victor,
> >>>>>
> >>>>>which versions of gcc, libc and Linux are you using, and on which
> >>>>>architecture are you running it?
> >>>>>
> >>>>>With current master I don't have any trouble with:
> >>>>>     cd examples/hello-world
> >>>>>     make -B clean all
> >>>>>     make term
> >>>>>
> >>>>>Cheers, Ludwig
> >>>>>
> >>>>>On Thu, Feb 13, 2014 at 06:42:49AM -0800, Victor Pangaldus wrote:
> >>>>>>Hi all,
> >>>>>>
> >>>>>>
> >>>>>>I recently found RIOT OS and decide to give it a try. However, I
> >>>>>>got segmentation fault when I tried to run the example. Here is the
> >>>>>>step I take:
> >>>>>>* clone the RIOT source
> >>>>>>   git clone https://github.com/RIOT-OS/RIOT.git
> >>>>>>* compile the example for linux machine (I already have the GCC
> >>>>>>toolchains installed)
> >>>>>>   cd examples/hello-world
> >>>>>>  make
> >>>>>>* run theexample (the .elf file)
> >>>>>>
> >>>>>>  ./bin/native/hello-world.elf
> >>>>>>  Segmentation fault
> >>>>>>I also tried other example (default) without luck. Is there
> >>>>>>something that I miss? I have not changed anything on the makefile,
> >>>>>>and I check that the BOARD is native, which is the correct target
> >>>>>>(according to the RIOT wiki)  if I want to run it on linux machine.
> >>>>>>
> >>>>>>
> >>>>>>Thanks.
> >>>>>>Regards,
> >>>>>>_______________________________________________
> >>>>>>users mailing list
> >>>>>>users at riot-os.org
> >>>>>>http://lists.riot-os.org/mailman/listinfo/users
> >>>>>_______________________________________________
> >>>>>users mailing list
> >>>>>users at riot-os.org
> >>>>>http://lists.riot-os.org/mailman/listinfo/users
> >>>>
> >>>>_______________________________________________
> >>>>users mailing list
> >>>>users at riot-os.org
> >>>>http://lists.riot-os.org/mailman/listinfo/users
> >>>
> >>>_______________________________________________
> >>>users mailing list
> >>>users at riot-os.org
> >>>http://lists.riot-os.org/mailman/listinfo/users
> >>
> >>_______________________________________________
> >>devel mailing list
> >>devel at riot-os.org
> >>http://lists.riot-os.org/mailman/listinfo/devel
> >_______________________________________________
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> 
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